Assigwob



DORSAY MCC. WHITE.

HYDROCARBON MOOR. APPLICATION man Nov. l1. |915.

Patented Sept. 16, `1919.

Z SHEETS-SHEET l.

@wf-m unirsi) STATES entranti?l OFFICE;

' DozasAY Macau. WHITE, or DETROIT, MICHIGAN, AssIGNon 'ro ,CADILLAC'Moron o coMrANY, or DETROIT, MICHIGAN, A CORPORATION F MICHIGAN.

HYDROCABBON-MOTOR.

Specification of Letters -Ilatent. Patented Sept. 16, 1919.

Application filed November 11,1915, Serial'Nu. 60,813.

To all iii/tom it may concern Y Be it known that I, DORSAY ,MCCALLWinnie, a loyal subject of the King of England, and resident of Detroit,Wayne county, State of Michigan, have invented certain newand usefulImprovements in Hydro-I carbon-Motors, of which the following is aspecilication. This invention relates tohydrocarbon molO tors, andparticularly to hydrocarbon motors of the so called \f typo.

One of the objects of this invention is a novel arrangement andconstruction of the valve. operating,r mechanism of a V type motor.

Another object is to provide a Valve ,operating mechanism, uhich isAsimple in construction and efficient in operation; which may be easilyassembled and disassembled 2o and is comparatively inexpensive tomanufacture. v

Another object of this invention is to pre vide a motor of the V type.having its valves and operating mechanism so arranged that the valvemechanism of opposite cylinders muy be operated by the same cam, orcams,

through suitable intermediate' members or roi-ker arms, which may beassembledA in position and disassembled therefrom, without disturbingcorrelated parts, such as the cam sha1" t and the valve mechanismproper; and to provide a valve mechanism havin tlnse parts so arrangedthat the lift on the talipets will he straight upward, instead ofhaving;r a lateral thrust component, as in previous valve operatingmechanisms of this type. i.

Other objects will appear from the followingdescrption. taken inconnection with 4G the drawings, which form a part of thisspecification. and in which:

Figure 1 is a longitudinal vertical section,

.substantially on the line 1 1 of Fig. 2

of a motor embodying a form of this inveni5 fion. showing parts brokenaway;

Fig. 2 is a transverse view, showingr parts broken away;

Fig. I3 shows a side view of an assembly of a prateria-.d form of valveoperating rocker arms and supporting members;

Fi 4: shows a face view looking upwa'd y, of the assembly shown in. Flg.3; an Y l Fig. 5 is an enlarged fragmentary view of the valve operatingmechanism. `5

Referring to the drawings, l0 represents the motor lbase or crank cascon which is suitably mounted in V relation a plurality of cylinderblocks 11 and 12, which are secured thereto, as by bolts 13. Thecylinders are. provided,y with pistons 14,- Which are adapted to 'beconnected with 'the crankshaft 15 by means 4of connecting r'ods 16 and17, suitably attachedV at their upper ends to the pistons 14, by meansof the usual piston pins 18- i Y The crank shaft 15 may be mounted insuitable`be'arings 19 in thecrank vcase 10, which are secured therein bymeans of detachable caps 20and bolts 21. It will be 70 noted that as thecylinders in the blocks 11 and 12 are arranged opposite each other, oneof each of the connecting rods 16 and 17 are adapted to vbe journaled ona single crank 22. This may be done by providing one of the connectingrods, such as 16, with a forked portion 16',l which has suitably secured thereto, as by pins 18, a journal member 19, which may be securedin position in 'the detachable caps 23, as by bolts 24. The 8o otherconnecting rod 17 is adapted to be sleeved within the yoke arms on thejournal member 19 and secured in position, as by cap 254 and bolts 26.Arranged adjacent one end of the crank shaft 15 is a driving gear 85 27,which may be secured thereto, as by a. bolt 28, and a ily Wheel 29 maybe secured to 'the opposite end of the crank shaft by bolts 30.

Each of the cylinders is provided with an inlet valveand an exhaustvalve mecha nism, arranged in the adjacent or inner sides of thecylinders and comprising a bushing31, suitably arranged in the upperportion of the cylinder and having mounted therein a valve 32 of thepuppet type, which is provided with a collar 33, arrangedon the stem 34thereof. .A valveclosmg s rlng 4 35 is suitably arranged between thecylinder and the collar 33. Adjustable4 tappets 36 100 driving 1t, suchas 'gear 43",- jn the form of a ch A U `vided. i cover plate 46 for. thedrlving l mechanism, arranged at the front 'end vof cylinder blocks arms54 .and 55 are arranged in bushings 37, wliibl'in'i'ay behel -inposition .in the crankca'se 10, as by a pressed fit, and arranged ,ontheup per end of the tappi-.its is 11n-adjustable contact portion 36 wh'icsition by nuts 38 arranged on the different parts of the tappetsforadjusting a proper clearance between the valve stem` '34 and tappets 3G.The actuating means Afor the valfv'es will new be more particularly.described.-

to operatethe valves'in opposite lcylin ers, .plurality of cams 40. andbearings 41 and it may'be .arranged in foi-fined integral with the crankcase 10 abcd-e the crank rei-tical plane therewith, by an endwisemovement thereof. This cani shaftlmay be secured in position byranssi'lch asa pin 42, and may be provided with 'means for a gear/43,'Winch isar-" izit''e'd adjacentits front end and adapted f "eseuredthereto, as by a `bolt 44. A driv'fiiigf connection from' the gear 27tothe ain It5 is protlie motor, may be 10,as by b olts 47. lt will heunderstoodthat the crank-case is provided at its upper side withan'opening 48, lwhich is adapted to be closed-by a cover or supportingplate 49, which may be secured in position asl by bolts '.50. Thesupporting plate 49. is provided with a plu'- rality of sets ofdownwardly extending lugs 51 and 5l', Lin which are arranged 'suitablebushings 52 for supporting nods 53 and 53', respectively.. It willbe"understood that in an eight cylinder motor, as illustrated, havingits cylinders arranged at a ninety degree angle, each of the canis'isadapted .to operate two valves arranged in opposite cylinders, as shown.

arranging the pairs 55 on the respective secured to the crank case rods53 andA 53 on op# posits sides of the'cam shaft 39 and-Leach' pairadapted to be actuated -by a single cam 40 and to operate a valveiii-opposite alternately. These rocker are held in prdper relation bymeans of the spacers 56, which may be secured to therods 53 and 53 bypins 57. 1t will be noted that the 'ocker arms are provided'withrollers' 58 and renewable contactpoints 59 and that While the axes ofthe camshaft and. tappets do not coincide,

the relation of the cams,

tappets is4 such that the lift tvrlleplbduce a minimum side thrustcompon'I fwill also be understood ti' either-the valve tappets or thecontact'p ints` 59 may-be curved on a radius to gives. point or linecontact between these members.

l1 maybe locked in poa Sing-1e am Shaft 3,9, which' is adapted.

shaft 15 and inthe-same This' mayv be -done by j of rocker armsv 54 and`rocker" arms and' Laisse? ItA will be seen from` the-above descripthatthe cam shaftl and the ranged thereon, may be assembled and disassembledin position. Without removing the Avalve actuating rocker, arms,

provided theyparts ar- `are Vlifted up, so' that' they ,will notinterfere vwith the cams -on the withdrawal `of the shaft, and-that thecover-plate 49 is adapted -to have' the rockerarms arranged thereon."

1n .operative'relation, as a unit, While on the bench and may then becrank case withotdisturbing the cam shaft o1' its securing means.l

It will also be understood that the supporting plate and its rocker armsmay be removed as a unit from arranged on the Y the crank case withoutdisturbing the mounting of the valve' mechanism, or the cam-shaft,or

disturbing adjustment of these parts.

`,While AI have described and illustrated one of my preferred forms ofinvention, it will, of course, be nnderstood that various modificationsmay be made, by. one skilled in the art, without departing from thespirit .or scope will be covered4 its tappets herein.

' ent is :fy

1.111 an internal combustion engine the combination Witha crank case,a'cam sh A'bearings' therefor mounted" in said crank case, and means forsecuring said cam shaft in position in lSaid bearingsgof a supportingplate, rocker arms mounted ing plate and adapted to be operated by saidcani shaft', and means for detachablysecun. ing said supporting plate tosaid crank case, the relation. ofsaid supporting "plate, the rockei'armsmounted thereon, the cam shaft and its bearings, being such that thesupporting plate may'be'removedfrom saidfcrank case without disturbingthe mountingV of either said rocker arms or said cam shaft on the plateand thecrank casev respectively.

'2. In an internal combustionengine, the' combination with a crank case,"of cylinders mounted thereon in V relation and provided-Witlrreciprocating valve mechanisms, of a cam shaft adapted to bemounted insaid'fcranlg valve mechanisms,.a supporting plate, rocker armsmounted thereon in 'pairs and to be independently operated by ysaid camshaft, and means for securing said support- ,ing plate to said crankcase, said supporting plate being adapted to lie-removed' from saidanisms, a cam shaft mounted in bearings in Having thus described myinvention, what the varlous necessarily delicate,

on said supportcase for operatingfsaid adapted 90 of my invention, andwhich mechanisms, of a pets, said supporting plate being adapted to esecured to and removed from said crank' caseA without disturbing anendwise movement of said for operating said valve supporting plate,rocker arms mounted thereon in pairs and adapted to. heindependentlyoperated by said cam shaft, and means for mounting said supporting plateon said crankcase, said supporting plate lbeing adapted to be removedfrom said crank case without disturbing the adjustment of said cam shaftbearings.

4. In an internal combustion engine, the combinationwith a crank case,of a plurality of cylinders mounted thereon in V relation and providedwith reciprocating valve mechanisms, a cam shaft, and valve tappetsmounted in said crank case, of a 'supporting plate, rocker arms mountedthereon in pairs and adapted to be independently operated by said camshaft and to operate said tapsaid crank case the mounting of said valvetappets.

In an internal combustion engine, the combination with the crank case, acam shaft mounted in bearings therein, and valve tap-Y pets also mounted-in said crank case, of a supporting plate, rocker arms mounted thereon,and. adapted to lbe operated by said cam shaft and to operate saidtappets, and

means for dctachably securing said supporting plate to said crank case,said supporting` plate being adapted crank case with its associatedrocker arms 'without disturbing the mounting of said cam shaft or saidvalve tappets.

6. In an internal combustion engine, the combination with a crank case,a cam shaft, bearings therefor and means formed integral witifsaid crankcase for supporting the bearings for the cam shaft, said cam shaft beingmounted in said crank case by shaft, of a rocker arms f mounted beoperated by said cam adapted to be supporting plate, thereon adapted toshaft, and means said supporting plate to said crank case,

said supportingplate and said rocker arms combination of a crank beingadapted' to be removed from operative position without disturbingv saidcam shaft.

7.1I'n an internal combustion engine, the

case having an opening therein, a cam shaft adapted to be mounted in4bearings'in saidcrank case arranged adjacent said opening, means forsecuring said bearings and cam shaft' in position in said crank case, ofa cover plate for said opening. rocker arms mounted on said plate. andadapted to beoperate-d .by said cam shaft, and means for detaehablysecuring said plate to said crank c ase,

8. Inan internal combustion engine, the combination with a crank case,a' crank shaft and a camshaft mounted therein in the same verticalplane,of a supporting plate, rocker ariris mounted on said supporting to beremoved from said for detachably securing ed to be'operated .bysaid camplate and adapted to be operated by said cam shaft, and means forsecuring said sup-- porting plate to said crank case.

9. In an internal combustion engine, the combination .with a crank case,a' crank shaft mounted therein, and acam shaft having its axis in thesame vertical plane as the crank shaft, mounted in bearings in said.crank case, of a supporting plate, rocker arms mounted thereon andadapted to be operated by said cam shaft, and means for securing saidsupporting plate to said crank case, said supporting plate being adaptedto be removed from said crank case vwithout disturbing the mounting ofsaid cani. shaft in said crank case.

l0. In an internal combustion engine, the

a plu- Y a crank shaft .and a cam being adapted to be assembled inoperative position and disassembled therefrom witlr out disturbing themeans for retaining said cam shaft and said crank shaft in driving|relation.

-1 l. In an internal combustion engine, the combination with a crankcase, a plurality of cylinder blocks mounted thereon in V relation, andvalve mechanisms arranged in the adjacent faces of saidV blocks, ofmeans for operating said valve mechanis'n'is comprising a 'cam shaftbetween said blocks and mounted in' said crank case, a supportmg' platedetachably secured to said crank'case, and a' plurality of rockerthereon between said shaft mechanisms.

12. In an internal combustion engine, the `combination with a crankcase, a plurality of cylinder blocks mounted thereon in V relation andvalve mechanisms arranged in the adjacent faces of said blocks, of meansfor operating said `valve mechanisms com-- prisng a cam shaft betweensaid blocks and mounted in said crank case, plate, rocker arms mountedthereon, adapt'- shaft and to operate said valve mechanism, saidsupporting plate being adapted to be secured to said crank case and tobe removed therefrom without disturbing said cam shaft.

13. In an internal combustion engine, the combination with a crank l ofcylinder blocks mounted thereon in V relation, and. valve.mechanismscomprising reciprocating valvsgranged in the adjalcent faces ofsai f fmeans for' Operand said valve arms mountedcase, a plurality iop asupporting i ist ating said valve mechanisms comprising a cam shaft,said valves and cam shaft not having 'coincident axes, and meansarranged between said valve and cani shaft having' Aa.substantial1yconstant skid-ing contact with said. valve mechanisms, i

:14. In an interna combustion engine, the'A said parts and havinga'substaiitially constandpoint Contact with saidvalve mechanism, and,means being mountedon a supporting plate' detachably secured to saidcrank case.

, 15. In an internal combustion'engine, the

combination with a crank case, a plurality.

'of cyli'ndei-blocks mounted vthereon .in V

relation vand provided with vreciprocatiiig valve mechanisms arranged inthe' adjacent facescf said blocks of means for'operating said valvemechanisms comprising a cam shaft, and means arranged between saidshaftandsaid valve having a substantially constant sliding,r contactwith said valve mechanisms.

16. In an internal combustion-engine, thel combination with a crankcas-c, a plurality of cylinder blocks mounted thereon .1n V

.relation and.. provided with reci rocating p valve mechanisms 'arrangedintheiadjaeent faces of 'said blocks, of means for ,operating saidValvemechanisms comprising a cam shaft,- said valve mechanisms and camshaft being so arranged that their axes do not is; A siena-- coincide,and rocker arms interposed therebetween having a substantiallylconstantsliding contact with said valve mechanisms.

1,7'.4 In an internal combustion engine, the.

combination with a crank case, a plurality of cylinder blocks mountedthereon in V` relation "and provided with reciprocating valve mechanismsarranged in the adjacent faces of said blocks, of means for operatingsaid valve mechanisms vcomprising a cam shaft, s aid valve mechanismsand cam shaft being so arranged that their Vaxes do not coincide, androcker arms interposed therebetween, said valve mechanisms and rockerarms' having their contacting p0rtions so formed that a substantiallyconstantl Y In an internal combustion engine, the combination with acrank case, a phiialit of cylinder blocks mounted thereon inl relationaud .provided with reciprocating point Contact is provided therebetween.

Vvalve mechanisms i arranged in the adjacent faces of said blecl v'ofmeans for operating said valve niechai ism l comprising a cani shaft,said valve mechgnisms and cam shaft istV bein so arranged that theiraxes do not co- I inci e, and rocker arms interposed therebetween saidrocker arms havin@ means Y. b provided for maintaining a substantiallyconstant point Contact between the cam shaft and valve mechanismrespectively.

In testimony whereof I 'aix my signature in the presence of twowitnesses.

D. MCGALL WTITE. Witnesses Ln Roi J. VInniAMs, F. L. Davis.

